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    Inhibition of human vascular NADPH oxidase by apocynin derived oligophenols

    Author
    Mora-Pale, M.; Weïwer, M.; Yu, J.; Linhardt, Robert J.; Dordick, J.S.
    ORCID
    https://orcid.org/0000-0003-2219-5833
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    INHIBITION OF HUMAN VASCULAR NADPH OXIDASE BY APOCYNIN.pdf (1.293Mb)
    Other Contributors
    Date Issued
    2009-07-15
    Subject
    Biology; Chemistry and chemical biology; Chemical and biological engineering; Biomedical engineering
    Degree
    Terms of Use
    In Copyright : this Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). https://rightsstatements.org/page/InC/1.0/;
    Full Citation
    Inhibition of human vascular NADPH oxidase by apocynin derived oligophenols, M. Mora-Pale, M. Weïwer, J. Yu, R.J. Linhardt, J.S. Dordick, Bioorganic Chemistry and Medicinal Chemistry, 17, 5146–5152, 2009.
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    URI
    https://hdl.handle.net/20.500.13015/5214; https://doi.org/10.1016/j.bmc.2009.05.061
    Abstract
    Enzymatic oxidation of apocynin, which may mimic in vivo metabolism, affords a large number of oligomers (apocynin oxidation products, AOP) that inhibit vascular NADPH oxidase. In vitro studies of NADPH oxidase activity were performed to identify active inhibitors, resulting in a trimer hydroxylated quinone (IIIHyQ) that inhibited NADPH oxidase with an IC50 = 31 nM. Apocynin itself possessed minimal inhibitory activity. NADPH oxidase is believed to be inhibited through prevention of the interaction between two NADPH oxidase subunits, p47phox and p22phox. To that end, while apocynin was unable to block the interaction of his-tagged p47phox with a surface immobilized biotinalyted p22phox peptide, the IIIHyQ product strongly interfered with this interaction (apparent IC50 = 1.6 μM). These results provide evidence that peroxidase-catalyzed AOP, which consist of oligomeric phenols and quinones, inhibit critical interactions that are involved in the assembly and activation of human vascular NADPH oxidase.;
    Description
    Bioorganic Chemistry and Medicinal Chemistry, 17, 5146–5152; Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
    Department
    The Linhardt Research Labs.; The Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies (CBIS);
    Publisher
    Elsevier
    Relationships
    The Linhardt Research Labs Online Collection; Rensselaer Polytechnic Institute, Troy, NY; Bioorganic and Medicinal Chemistry; https://harc.rpi.edu/;
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    A full text version is available in DSpace@RPI;
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